CN105872238B - Correction method and correction device for input number - Google Patents

Abstract

The invention provides a correction method and correction system for an input number. The method for correcting the input number includes the following steps: acquiring and displaying the input number; detecting the user's error correction operation, and after detecting the error correction operation, expanding the display area of each number in the input number; and receiving the modification of the input number. Using the technical solution of the embodiment of the present invention, after the error correction operation is detected, the digital display area of the input number is expanded, which can provide the user with a larger and more convenient modification area within the limited control space of the communication device, which is convenient for the user to touch. The screen operation reduces input errors and repeated operations caused by inaccurate positioning, and improves the user's operational convenience.

Description

Correction method and correction device for input number

This application is a divisional application of an invention application with an application number of 201310656875.2, an application date of December 6, 2013, and the title of the invention as "correction method and correction device for inputting numbers".

technical field

The invention relates to the field of communications, in particular to a correction method and correction system for an input number.

Background technique

Entering a dialed number on a communication device is a common practice. With the development of a new generation of mobile communication devices, at present, most communication devices such as mobile phones have eliminated mechanical keyboards and used touch screens as input devices.

When a user inputs a number that needs to be dialed or performed other operations in various ways, especially when a number is input by voice recognition or image recognition, input errors may occur. Therefore, after inputting the number, the user needs to correct the error of the inputted number. The common method in the prior art is to cancel the current number input and re-enter it; or the user operates the screen to locate the input focus at the position that needs to be corrected. , start the device input method to adjust.

However, using the above method to correct the entered number, there are the following problems: canceling the operation and re-entering, can not guarantee the correctness of the new input, resulting in cumbersome operation; the method of positioning and correcting the position to start the device, when the device screen is small or in special When the usage environment is in a swaying vehicle, accurate positioning is difficult, and the process of positioning, deleting, and re-keying is complicated, and the operations are frequent, which is likely to cause inconvenience to the user.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides an input number correction device and a corresponding input number correction method that overcome the above problems or at least partially solve the above problems.

A further object of the present invention is to improve the operational efficiency of the user's input of numbers.

Based on one aspect of the present invention, a method for correcting an input number is provided. The method for correcting the input number includes the following steps: acquiring and displaying the input number; detecting the user's error correction operation, and after detecting the error correction operation, expanding the display area of each number in the input number; and receiving the modification of the input number.

Optionally, detecting the error correction operation of the user includes: receiving an operation of the user on a preset button or a preset touch screen position within a predetermined time; and determining the error correction operation according to the operation.

Optionally, expanding the display area of each digit in the input number includes: expanding the width of the display area of each digit in the input number; and/or expanding the height of the display area of each digit in the input number.

Optionally, extending the width of the display area of each number in the input number includes: judging whether the resolution of the display screen is greater than the preset resolution; if so, extending the width of the display area of the input number to the preset width, according to the The number of digits is evenly distributed to the preset width; if not, the width of the display area of the input number is extended to the width of the display screen, and the width of the display screen is equally distributed according to the number of digits of the input number.

Optionally, expanding the height of the display area of each digit in the input number includes: expanding the height corresponding to the expansion ratio of the width, or expanding the height according to a preset device-independent pixel size.

Optionally, receiving the modification of the input number includes: receiving the modification of the input number by the user through a number modification control, wherein the number modification control is arranged at a corresponding position of the expanded display area of each number.

Optionally, the numerical modification control is a numerical scrolling control or a numerical increase/decrease control.

Optionally, acquiring the input number includes any one of the following methods: performing speech recognition on a sound signal containing the input number information, and extracting the input number; performing text recognition on the image signal containing the input number information, and extracting the input number; acquiring the user The input number entered using the input keyboard.

Optionally, after detecting the error correction operation of the user, the method further includes: if no error correction operation is detected within a predetermined time, executing a predetermined task according to the input number.

According to another aspect of the present invention, there is also provided a correction device for inputting numbers. The device for correcting the input number includes: a number input module for acquiring and displaying the input number; a number error correction module for detecting the user's error correction operation, and after detecting the error correction operation, expands the number of digits in the input number Display area; execution module for receiving modifications to the input number.

Optionally, the number error correction module is configured to: receive a user's operation on a preset button or a preset touch screen position within a predetermined time; and determine an error correction operation according to the operation.

Optionally, the number error correction module includes: a first extension submodule for extending the width of the display area of each digit in the input number; and/or a second extension submodule for extending the display area for each digit in the input number the height of.

Optionally, the first expansion submodule is configured to: determine whether the resolution of the display screen is greater than the preset resolution; if so, expand the width of the display area of the input number to the preset width, and distribute it evenly according to the number of digits of the input number. The preset width; if not, the width of the display area of the input number is extended to the width of the display screen, and the width of the display screen is evenly distributed according to the digits of the input number.

Optionally, the second expansion sub-module is configured to: correspond to the expanded height according to the expansion ratio of the width, or expand the height according to a preset device-independent pixel size.

Optionally, the execution module is configured to: receive the user's modification of the input number through a number modification control, wherein the number modification control is set at a corresponding position of the expanded display area of each number.

The method and device for correcting an input number of the present invention expand the digital display area of the input number after the error correction operation is detected, so that a larger and more convenient modification area can be provided to the user within the limited control space of the communication equipment, and it is convenient to It allows the user to perform touch-screen operations, reduces input errors and repeated operations caused by inaccurate positioning, and improves the user's operational convenience.

Further, the technical solution of the present invention automatically expands the display area to a size suitable for the screen according to the resolution of the actual screen, and has good compatibility and is suitable for various types of devices.

The above description is only an overview of the technical solutions of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand , the following specific embodiments of the present invention are given.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

FIG. 1 is a schematic diagram of an input number correction device 100 according to an embodiment of the present invention;

2 is a schematic diagram of a method for correcting an input number according to an embodiment of the present invention;

3 is a flow chart of inputting a mobile phone number using voice recognition technology according to an embodiment of the present invention;

4 is an interface effect diagram showing an input number in an input number correction method according to an embodiment of the present invention;

Fig. 5 is the effect diagram of the first digital modification control in the input number modification method according to an embodiment of the present invention; and

FIG. 6 is an effect diagram of the second type of number modification control in the input number modification method according to an embodiment of the present invention.

Detailed ways

The algorithms and displays provided herein are not inherently related to any particular computer, virtual system, or other device. Various general-purpose systems can also be used with teaching based on this. The structure required to construct such a system is apparent from the above description. Furthermore, the present invention is not directed to any particular programming language. It is to be understood that various programming languages may be used to implement the inventions described herein, and that the descriptions of specific languages above are intended to disclose the best mode for carrying out the invention.

With the advancement of speech recognition and natural language processing technology, speech technology is increasingly being applied to mobile devices to enhance user experience. However, because the accuracy of speech recognition is greatly affected by environmental noise, the speaker's accent, and the parameters of the machine and equipment, it is difficult to achieve 100% accurate recognition in some special application environments. In the case of slight errors in identification, it is necessary to quickly correct the identified results.

The method and device for correcting input numbers provided by the embodiments of the present invention can be applied to the correction process of input numbers in various ways, but is not limited to the correction of voice input numbers, and also includes numbers input by normal touch screen input or image recognition. The correction process has been optimized to improve the accuracy of user input. FIG. 1 is a schematic diagram of an input number correction apparatus 100 according to an embodiment of the present invention.

The apparatus 100 for correcting the input number may generally include: a number input module 110 , a number error correction module 120 , and an execution module 130 . According to the specific usage environment and special requirements, the number error correction module 120 may further include: a first extension sub-module 121 and/or a second extension sub-module 122 .

In the above components of the input number correction device 100, the number input module 110 is used to acquire and display the input number, to detect the user's error correction operation, and after detecting the error correction operation, expand the display of the digits in the input number area, the execution module 130 is used to receive the modification to the input number.

The input number obtained by the number input module 110 may be a number that is input in various ways, such as a number input by the voice recognition device according to the user's voice, a number recognized by the picture recognition device according to a selected or photographed picture, a number entered using a virtual keyboard. number etc.

The number error correction module 120 detecting the user's error correction operation may be configured to: receive the user's operation on a preset button or a preset touch screen position within a predetermined time; and determine the error correction operation according to the operation. For example, an error correction button is added to the corresponding position of the screen where the number input module 110 displays the input number, and the error correction operation can be determined according to the user's operation of the error correction button, thereby corresponding to the expanded number display area.

Generally, the parameters of the display area include display height and display width. The number error correction module 120 of the input number correction device 100 in the embodiment of the present invention is respectively provided with a first expansion sub-module 121 for expanding the digital display width and a first expansion sub-module 121 for expanding the digital display height. Two expansion submodules 122 . The first expansion sub-module 121 and the second expansion sub-module 122 can be set independently. For example, the width of the digital display is increased separately for the numbers arranged in the horizontal direction, and the height of the digital display is increased separately for the numbers arranged in the vertical direction. height and width.

The first expansion sub-module 121 is used to expand the width of the display area of each number in the input number, and can be specifically configured to: determine whether the resolution of the display screen is greater than the preset resolution; The width is extended to the preset width, and the preset width is evenly distributed according to the digits of the input number; if not, the width of the display area of the input number is extended to the width of the display screen, and the width of the display screen is evenly distributed according to the digits of the input number. . Due to the various types of existing terminal display screens, the screen sizes and display resolutions vary greatly. For screens with larger resolutions, the width of the display area of the input number can be extended to the preset width. For a small screen, the preset width may already be larger than the width of the screen. In this case, the width of the display area of the input number is extended to the width of the display screen. Therefore, the compatibility of different devices is solved, and the display area is automatically expanded to a size suitable for the screen according to the resolution of the actual screen.

Since the height of the screen of a general device is greater than the width, the second extension submodule 122 may be configured to: extend the height according to the extension ratio of the width, or extend the height according to the preset device-independent pixel size.

Using the number error correction module 120 to expand the spacing between the digits of the number, it is convenient for the user to directly position the positioning cursor at the position of the digit to be modified, so as to delete and re-type. This method is still somewhat complicated, which can be further improved by optimizing the execution module 130, wherein the execution module 130 can be configured to: receive the user's modification of the input number through the digital modification control, wherein the numerical modification control is set in each The corresponding position of the expanded display area of the number. The digital modification control can be selected as a digital scroll control or a digital increase or decrease control. Using these number modification controls can make it more convenient for the user to modify the input, and save the operation of deleting the wrong number.

The apparatus for correcting an input number in the above embodiment will be further described below with reference to the method for correcting an input number provided by an embodiment of the present invention. The method for correcting an input number provided in this embodiment of the present invention may be executed by any of the apparatuses 100 for correcting an input number introduced in the above embodiments, so as to improve the user's operation experience. FIG. 2 is a schematic diagram of a method for correcting an input number according to an embodiment of the present invention. Correction methods for this input number include:

Step S202, acquiring and displaying the input number;

Step S204, detecting the error correction operation of the user, and after detecting the error correction operation, expand the display area of each number in the input number

Step S206, receiving the modification of the input number.

The input number in step S202 can be a number that is input in various ways, such as the number input by the voice recognition device according to the user's voice, the number recognized by the picture recognition device according to the selected or photographed picture, the number keyed in using a virtual keyboard, etc. , through the displayed input number, it is convenient for the user to check the input number.

Detecting the user's error correction operation in step S204 may include: receiving the user's operation on a preset button or a preset touch screen position within a predetermined time; and determining the error correction operation according to the operation. For example, an error correction button is added to the corresponding position of the screen displaying the input number. If the user operates the error correction button, it proves that the user checks that the input number is wrong, and the input number needs to be corrected, and then the step of expanding the display area is entered.

Generally, the parameters of the display area include display height and display width. In step S204, expanding the display area of each digit in the input number may include: expanding the width of the display area of each digit in the input number; and/or expanding the display of each digit in the input number The height of the area.

Wherein, extending the width of the display area of each number in the input number includes: judging whether the resolution of the display screen is greater than the preset resolution; if so, extending the width of the display area of the input number to the preset width, according to the number of digits of the input number Evenly distribute the preset width; if not, expand the width of the display area of the input number to the width of the display screen, and evenly distribute the width of the display screen according to the digits of the input number. Perform different expansions for screens with different resolutions. For example, for a screen with a larger resolution, the width of the display area of the input number can be extended to a preset width. For a screen with a smaller resolution, the preset width may already be is larger than the width of the screen, in which case, the width of the display area of the input number is extended to the width of the display screen. Therefore, the compatibility of different devices is solved, and the display area is automatically expanded to a size suitable for the screen according to the resolution of the actual screen.

Since the height of the screen of a general device is greater than the width, expanding the height of the display area of each number in the input number includes: expanding the height according to the expansion ratio of the width, or expanding the height according to the preset device-independent pixel size.

The space between numbers and digits has been expanded, and it is convenient for users to directly position the positioning cursor at the position of the digits to be modified, so as to delete and re-type. In order to save the step of deleting the wrong numbers and further improve the user experience, step S206 can receive the user's modification of the input number through the number modification control, wherein the number modification control is set at the corresponding position of the expanded display area of each number. Optionally, the numerical modification control is a numerical scrolling control or a numerical increase/decrease control.

After the user completes the action of revising the number, the user can perform a predetermined task according to the revised input number, such as making a call, sending a message, modifying an address book, and the like.

The following further describes the input method of the input number in the above embodiment with an application example in which the user uses the voice input number to perform telephone dialing. FIG. 3 is a flow chart of inputting a mobile phone number using voice recognition technology according to an embodiment of the present invention. The process includes:

Step S302, obtain the number input by the user through the voice recognition system, the number is obtained by the voice recognition system to the user's voice recognition, the input number of the recognition result is displayed, and the general user checks whether the input number is correct;

Step S304, start the timeout mechanism (the timeout can be set to 5 seconds), if the user does not intervene in the recognized input number recognition result within this timeout period, it is considered that the result is checked by the user without error, and step S308 is executed after the timeout expires. ,

Step S306, if the user triggers the error correction operation by clicking the modify button or the like within the timeout period, the input number needs to be corrected, and the correction display interface expands the display area of each number of the input number, and provides corresponding The number modification control, which receives the modification of the input number by the user;

Step S308, make a call according to the input number.

Compared with the situation in the prior art that it is difficult to accurately locate one digit in a series of digits, using the extended display area in step S306 helps the user to quickly and accurately complete the number correction action.

During the timeout period of step S304, the display interface as shown in FIG. 4 can be output. FIG. 4 is an interface effect diagram showing the input number in the input number correction method according to an embodiment of the present invention. In the figure, in addition to the input number, Two action options "Dial" and "Cancel" are also provided. If the user clicks the "Cancel" option, the operation will be canceled and the dialer program will be exited; if the user clicks the "Dial" option, the call will be made according to the current number immediately; range, it is considered that the input number needs to be corrected, and step S306 is executed.

The error correction operation in step S306 can be implemented by responding to the onClick event of the card View. Among them, View.OnClickListener is an interface defined in the View class. There is an abstract voidonClick(View v) method in this interface. Users can implement this method to respond to events.

Step S306 is executed, the delay time is cancelled, and the display area of the input number is automatically expanded, wherein the horizontal expansion needs to ensure that the width of each digit of the number is the same. The size of horizontal expansion is subject to the sufficient space for each number for touch control. Generally speaking, the final width of the mobile phone device is equal to or slightly narrower than the width of the mobile phone. For large-screen, high-resolution terminals such as tablet computers, The expanded width of the input number is suitable for touch operation. The height of the vertical expansion can be expanded according to the proportion of the width expansion, which is suitable to accommodate the next three rows of numbers.

The user interface design of the mobile operating system is generally implemented through layout. You can set the width of the card to "match_parent" and the height to "90dp" (assuming that the height of 90dp can accommodate three lines of numbers), the specific code is as follows:

android:layout_width="match_parent"

android:layout_height="90dip"

In the Android system, the above dp unit refers to device independent pixels (DIP for short), which is an abstract unit based on screen density and meets the normal display needs of screens of different sizes.

In order to adapt to the display screen size of the terminal, the expansion width of the display area can be determined by setting the screen resolution. For example, for a device with a screen resolution lower than 960*480, the expansion width of the display area is set to "match_parent", that is, it expands to The size that matches the width of the display screen, and the device with a screen resolution higher than 960*480, sets the extended width of the display area to a fixed width. In the entire expanded display area, the width of the display screen is evenly distributed according to the digits of the input number, and the width of each digit is guaranteed to be equal.

The numerical modification controls used in step S306 may adopt various numerical scroll controls or numerical increase/decrease controls. FIG. 5 and FIG. 6 respectively show the effect diagrams of the number modification controls in the input number modification method according to an embodiment of the present invention. Using this type of control can make it more convenient for the user to modify the input operation.

The space occupied by the control can be determined by the parameter of layout_weight in the Android system. For example, corresponding to the general 11-digit mobile phone number, if the layout_weight of each control is set to "1", the 11 controls will equally divide the space occupied by their ViewGroup. Each digit in the entered number can be modified using a digit modification control.

Taking the number shown in Figure 4 as an example, assuming that the user's voice input is 13812346543, obviously the voice recognition system recognizes the middle "4" as the number "5", then the entire process required by the user to modify is: find the wrong number position, slide the numeric control to modify the correct number, and execute the dialing.

The embodiments of the present invention can effectively improve the user's operation efficiency, improve the operation experience of functions such as voice dialing, reduce the misoperation rate, and improve the usability of the product in the terminal with limited control area. The present invention can be widely used in voice assistants, voice dialing, voice short messages or other product functions that require digital input to quickly and efficiently correct number recognition errors to improve user experience.

Using the technical solution of the embodiment of the present invention, after the error correction operation is detected, the digital display area of the input number is expanded, which can provide the user with a larger and more convenient modification area within the limited control space of the communication device, which is convenient for the user to touch. The screen operation reduces input errors and repeated operations caused by inaccurate positioning, and improves the user's operational convenience.

Further, the technical solution of the present invention automatically expands the display area to a size suitable for the screen according to the resolution of the actual screen, and has good compatibility and is suitable for various types of devices.

In the description provided herein, numerous specific details are set forth. It will be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it is to be understood that in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or its description. This disclosure, however, should not be construed as reflecting an intention that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components in the embodiments may be combined into one module or unit or component, and further they may be divided into multiple sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method so disclosed may be employed in any combination, unless at least some of such features and/or procedures or elements are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that although some of the embodiments described herein include certain features, but not others, included in other embodiments, that combinations of features of different embodiments are intended to be within the scope of the invention within and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all functions of some or all components of the apparatus for correcting input numbers according to embodiments of the present invention. The present invention can also be implemented as apparatus or apparatus programs (eg, computer programs and computer program products) for performing part or all of the methods described herein. Such a program implementing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such signals may be downloaded from Internet sites, or provided on carrier signals, or in any other form.

It should be noted that the above-described embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by those skilled in the art without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

By now, those skilled in the art will recognize that, although various exemplary embodiments of the present invention have been illustrated and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (7)

1. A correction method of an input number, comprising the following steps: Get and display the input number; Detecting the error correction operation of the user, and after detecting the error correction operation, expanding the display area of each digit in the input number; receiving a modification to said input number; Wherein, detecting the user's error correction operation includes: starting a timeout mechanism, if the user triggers the error correction operation within a predetermined time, cancel the delay time of the timeout mechanism, and receive the user's response to a preset button or button within a predetermined time. The operation of the preset touch screen position, and the error correction operation is determined according to the operation; Receiving the modification of the input number includes: receiving the modification of the input number by the user through a numerical modification control, wherein the numerical modification control is arranged at a corresponding position of the expanded display area of each number; Extending the display area of each digit in the input number includes: extending the width of the display area of each digit in the input number; and/or extending the height of the display area of each digit in the input number; Extending the width of the display area of each digit in the input number includes: Determine whether the resolution of the display screen is greater than the preset resolution; If so, extend the width of the display area of the input number to a preset width, and evenly distribute the preset width according to the number of digits of the input number; If not, the width of the display area of the input number is extended to the width of the display screen, and the width of the display screen is evenly distributed according to the digits of the input number. 2. The method according to claim 1, wherein extending the height of the display area of each numeral in the input number comprises: The height is correspondingly expanded according to the expansion ratio of the width, or the height is expanded according to a preset device-independent pixel size. 3. The method according to claim 1 or 2, wherein the numerical modification control is a numerical scroll control or a numerical increase/decrease control. 4. The method for revising an input number according to claim 1 or 2, wherein acquiring the input number comprises any of the following ways: Perform speech recognition on the sound signal containing the input number information, and extract the input number; performing character recognition on the image signal containing the input number information, and extracting the input number; The input number entered by the user using the input keyboard is obtained. 5. The correction method of input number according to claim 1 and 2, wherein, after detecting the error correction operation of the user, it also comprises: If the error correction operation is not detected within a predetermined time, a predetermined task is performed according to the input number. 6. A correction device for inputting numbers, comprising: a number input module for acquiring and displaying the input number; a number error correction module, used to detect the error correction operation of the user, and after detecting the error correction operation, expand the display area of each number in the input number; an execution module, configured to receive a modification to the input number; Wherein, the number error correction module is also used to start a timeout mechanism, if the user triggers an error correction operation within a predetermined time, cancel the delay time of the timeout mechanism, and receive the user's response to the preset time within the predetermined time. an operation of a button or a preset touch screen position, and the error correction operation is determined according to the operation; The execution module is further configured to receive the modification of the input number by the user through a numerical modification control, wherein the numerical modification control is arranged at a corresponding position of the expanded display area of each number; The number error correction module includes: a first expansion submodule, used to expand the width of the display area of each number in the input number; and/or a second expansion submodule, used to expand the height of the display area of each number in the input number; The first expansion submodule is configured as: Determine whether the resolution of the display screen is greater than the preset resolution; If so, extend the width of the display area of the input number to a preset width, and evenly distribute the preset width according to the number of digits of the input number; If not, the width of the display area of the input number is extended to the width of the display screen, and the width of the display screen is evenly distributed according to the digits of the input number. 7. The apparatus of claim 6, wherein the second expansion submodule is configured to: The height is correspondingly expanded according to the expansion ratio of the width, or the height is expanded according to a preset device-independent pixel size.

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